Mountable light



FIG. 1 is a perspective view of an ornamental design for a mountable light;

FIG. 2 is a second perspective view thereof;

FIG. 3 is a side view of a first side thereof;

FIG. 4 is a side view of a second side thereof;

FIG. 5 is a side view of a third side thereof;

FIG. 6 is a side view of a fourth side thereof;

FIG. 7 is an end view of a first end thereof; and,

FIG. 8 is an end view of a second end thereof.

Broken lines in the drawing indicate unclaimed parts of the article that are not claimed herein, and that form no part of the claimed design. 

CLAIM The ornamental design for a mountable light, substantially as shown and described. 